222120031 has 8 divisors (see below), whose sum is σ = 253946880. Its totient is φ = 190317048.

The previous prime is 222120029. The next prime is 222120043. The reversal of 222120031 is 130021222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222120031 - 2¹ = 222120029 is a prime.

It is a super-2 number, since 2×222120031² = 98674616342881922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222119993 and 222120020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24090 + ... + 32008.

It is an arithmetic number, because the mean of its divisors is an integer number (31743360).

Almost surely, 2^222120031 is an apocalyptic number.

222120031 is a deficient number, since it is larger than the sum of its proper divisors (31826849).

222120031 is an equidigital number, since it uses as much as digits as its factorization.

222120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 222120031 is about 14903.6918580599. The cubic root of 222120031 is about 605.6140031544.

Adding to 222120031 its reverse (130021222), we get a palindrome (352141253).

The spelling of 222120031 in words is "two hundred twenty-two million, one hundred twenty thousand, thirty-one".